<template>
    <el-menu default-active="1-4-1" class="el-menu-vertical-demo" background-color="#545c64" text-color="#fff" active-text-color="#ffd04d" @open="handleOpen" @close="handleClose" :collapse="isCollapse">
        <el-menu-item @click = "clickMenu(item)" v-for="item in noChildren" :index="item.path+''" :key="item.path">
            <i :class="'el-icon-' + item.icon"></i>
            <span slot="title">{{item.label}}</span>
        </el-menu-item>
        <el-submenu v-for="item in hasChildren" :index="item.path+''" :key="item.path">
            <template slot="title">
                <i :class="'el-icon-' + item.icon"></i>
                <span slot="title">{{item.label}}</span>
            </template>
            <el-menu-item-group v-for="(subItem, subIndex) in item.children" :key="subItem.path">
                <el-menu-item @click = "clickMenu(subItem)" :index="subIndex.toString()">{{subItem.label}}</el-menu-item>
            </el-menu-item-group>
        </el-submenu>
    </el-menu>
</template>


<style>
  .el-menu-vertical-demo:not(.el-menu--collapse) {
    width: 200px;
    min-height: 400px;
  }
  .el-menu{
      height: 100%;
  }
</style>

<script>
  export default {
    data() {
      return {
        isCollapse: false,
        menu:[
            {
                path:'',
                name:'home',
                label:'首页',
                icon:'s-home',
                // url:'Home/home'
            },
            {
                path:'/shop',
                name:'shop',
                label:'店铺管理',
                icon:'video-play',
                // url:'ShopManage/ShopManage'
            },
            {
                path:'/user',
                name:'user',
                label:'用户管理',
                icon:'user',
                // url:'UserManage/UserManage'
            },
            {
                label:'其他',
                icon:'location',
                children:[
                    {
                        path:'/page1',
                        name:'page1',
                        label:'页面1',
                        icon:'setting',
                        url:'Other/PageOne'
                    },
                    {
                        path:'/page2',
                        name:'page2',
                        label:'页面2',
                        icon:'setting',
                        url:'Other/PageTwo'
                    }
                ]
            }
        ]
      };
    },
    methods: {
      handleOpen(key, keyPath) {
        console.log(key, keyPath);
      },
      handleClose(key, keyPath) {
        console.log(key, keyPath);
      },
      clickMenu(item){
          this.$router.push({
              name:item.name
          })
          this.$store.commit('selectMenu', item)    
      }
    },
    computed:{
        noChildren(){
            return this.menu.filter(item => !item.children)
        },
        hasChildren(){
            return this.menu.filter(item => item.children)
        },
        isCollapse(){
            return this.$store.state.tab.isCollapse
        }
    }
  }
</script>